Chrysanthemum named &#39;Yellow Reagan Mundo&#34;

ABSTRACT

A Chrysanthemum plant named ‘Yellow Reagan Mundo” characterized by its medium sized blooms with white ray-florets and yellow-green disc florets.

RELATED APPLICATIONS

[0001] ‘Yellow Reagan Mundo” is related to ‘Pearl Reagan Mundo’(unpatented) and the co-pending ‘Dark Reagan Mundo’ (#______) ‘YellowReagan Mundo” and ‘Dark Reagan Mundo’ are both a natural sport of ‘PearlReagan Mundo’.

BACKGROUND OF THE INVENTION

[0002] ‘Yellow Reagan Mundo” is a product of a beding and selectionprogram which had the objective of finding color mutants of ‘PearlReagan Mundo’. The new plant of the present invention comprises a newand distinct cultivar of chrysanthemum plant that is a natural occuringsport of a parent chrysanthemum named ‘Pearl Reagan Mundo’. A comparisonwith Parent chrysanthemum ‘Pearl Reagan Mundo’ is also made in thisapplication. The new cultivar was discovered as a whole plant mutationin September 1996 by Rob Noodelijk in a controlled environment(greenhouse) in Rijsenhout Holland. The first act of asexualreproduction of ‘Yellow Reagan Mundo” was accomplished when vegetativecuttings were taken from the initial selection in November 1996 inRijsenhout Holland.

SUMMARY OF THE INVENTION

[0003] The present invention is a new and distinct variety ofchrysanthemum bearing medium sized blooms with white ray-florets andyellow-green disc florets.

BRIEF DESCRIPTION OF THE DRAWINGS

[0004] The present invention of a new and distinct variety ofchrysanthemum is shown in the accompanying drawings, the color being asnearly true as possible with color photographs of this type.

[0005]FIG. 1 shows a stem of the cultivar in full bloom.

DESCRIPTION OF THE INVENTION

[0006] This new variety of chrysanthemum is of the botanicalclassification dendranthema Grandiflora. The observations andmeasurements were gathered from plants grown in April/May a greenhousein Rijsenhout Holland in a photo-periodic controlled crop underconditions generally used in commercial practice. The greenhousetemperatures during this crop were at day-time between 18° C. and 25° C.and at night 20° C. After a long day period of 14 days thephoto-periodic response time in this crop was 50 days. After the longday period to flowering growth retardents were applied 2 to 3 times inan average dose of 2.5 gram/liter water. No tests were done on diseaseor insect resistance or susceptibility. This new variety produces mediumsized blooms with white ray-florets and yellow-green disc-floretsblooming on the plant for 28 days. This new variety of chrysanthemum hasbeen found to retain its distinctive characteristics throughoutsuccessive propagations however the phenotype may vary significantlywith variations in environment such as light intensity and temperature.To show the phenotype as described ‘Yellow Reagan Mundo” may be plantedwithout assimilation lightning between week 50 and 40 under greenhouseconditions in Holland. With assimilation lightning (minimum level 2500lux) it may be planted year round under greenhouse conditions inHolland.

[0007] From the cultivars known to inventor the most similar existingcultivars in comparison to ‘Yellow Reagan Mundo’ are ‘Pearl ReaganMundo, ‘Yellow Reagan’ and ‘Sunny Elite Reagan’.

[0008] When ‘Yellow Reagan Mundo”, ‘Pearl Reagan Mundo’, ‘Yellow Reagan’and ‘Sunny Elite Reagan’ are being compared the following differencesand similarities are noticed. (A) The difference of ‘Yellow ReaganMundo” and ‘Pearl Reagan Mundo’ is the flower color for whichcharacteristic ‘Yellow Reagan Mundo” has been selected out of ‘PearlReagan Mundo’. All other characteristics of ‘Yellow Reagan Mundo” and‘Pearl Reagan Mundo’ are the same. (B) The differences of ‘Yellow ReaganMundo” and ‘Yellow Reagan’ are (1) flower size (2) spray formation andflower count and (3) tolerance for a lower night temperature. All othercharacteristics of ‘Pearl Reagan Mundo' and ‘Reagan’ are similar. (C)The differences of ‘Yellow Reagan Mundo” and ‘Sunny Elite Reagan’ are(1) size and color of the flower disc (2) growth rate (3) sprayformation (4) tolerance for a lower night temperature. All othercharacteristics of ‘Yellow Reagan Mundo” and ‘Sunny Elite Reagan’ aresimilar.

[0009] (A) Flower color: ‘Yellow Reagan Mundo” has yellow ray-floretsinstead of pale pink ray-florets. (B) (1) Flower size: The flower of‘Yellow Reagan Mundo’ is a little smaller. (3) The spray formation: Thespray formation is more flat, less pyramidal, a little wider and theflower count is higher. (4) Temperature tolerance: ‘Pearl Reagan Mundo’and all its color mutants can be grown at a lower night temperature. Therequired minimum temperature for ‘Reagan’ (under all circumstances) is17° C. Under high light conditions ‘Pearl Reagan Mundo’ can be grown at14° C. This has been tested and confirmed in poor heated crops underhigh light conditions flowering in February 1997 and 1998 in Italy andSpain. (C) ‘Yellow Reagan Mundo’ has paler yellow ray-florets than‘Sunny Elite Reagan’ The flower disc of ‘Yellow Reagan Mundo’ is not sosmall. The growth of ‘Yellow Reagan Mundo’ is less vigorous instead ofmore vigorous. The spray formation of ‘Yellow Reagan Mundo’ is morespreading, with a bigger angle of the peduncles with the stem instead ofmore upright for ‘Sunny Elite Reagan’ and the most essential difference:‘Sunny Elite Reagan’ does not have a low temperature tolerance as‘Yellow Reagan Mundo”.

[0010] The following is a description of the plant and characteristicsthat distinguish ‘Yellow Reagan Mundo” as a new and distinct variety.

[0011] The color designations are taken from the plant itself.Accordingly, any discrepancies between the color designations and thecolors depicted in the photographs are due to photographic tolerances.The color chart used in this description is: The Royal HorticulturalSociety color chart, edition 1995.

Botanical Description of CULTIVAR ‘Yellow Reagan Mundo”

[0012] Bud

[0013]Size.—Medium Cross-section +/−1.0 cm height +/−0.7 cm.

[0014]Outside color.—Yellow 10 C.

[0015]Involucral bracts.—2 rows, length 7 mm, width 3 mm.

[0016]Involucral bracts among disc-florets.—Not present.

[0017]Involucral bracts color.—Green 138 B.

[0018] Bloom

[0019]Type.—Single.

[0020]Height.—Flat.

[0021]Size.—Medium.

[0022]Fully expanded.—6-6.5 cm.

[0023]Number of blooms per single stem.—Average of 12-14.

[0024]Seeds.—Not produced.

[0025]Performance (blooming period).—28 days.

[0026] Color

[0027]Center of the flower (disc florets).—Immature Yellow-green 144 Ain the center to yellow 12 A along the border, mature Yellow 12 A with adot of yellow-green 144 A in the center.

[0028]Color of upper surface of the majority of the ray-florets.—Yellow10 A

[0029]Color of the lower surface of the majority of theray-florets.—Yellow 10 C

[0030]Tonality from distance.—A yellow daisy with a yellow-green disc.

[0031]Discoloration to color.—To Yellow 10 C.

[0032] Ray florets

[0033]Texture.—Upper and under side smooth.

[0034]Number.—26-30 (two rows).

[0035]Cross-section.—Convex.

[0036]Longitudinal axis of majority.—Slightly reflexing sometimestwisted.

[0037]Length of corolla tube.—Very short.

[0038]Ray-floret length.—3.5 cm.

[0039]Ray-floret width.—1.2 cm.

[0040]Ratio length/width.—Medium.

[0041]Shape of tip.—Pointed, sometimes dentate.

[0042] Disc florets

[0043]Disc Diameter (when visible).—Medium (1.5 cm).

[0044]Distribution of disc florets.—Numerous, visible at all stages offlowering.

[0045]Type.—Tubular.

[0046]Color.—Immature Yellow-green 144 A, mature yellow 12 A.

[0047]Receptacle shape.—Conical raised.

[0048] Reproductive Organs

[0049]Stamen (present in Ydisc florets only).—Yellow, thick, 3 mm inlength.

[0050]Stamen color.—Yellow 12 B.

[0051]Pollen.—Present.

[0052]Styles (present in both ray and disc florets).—Green, thick.

[0053]Style color.—Green 143 B.

[0054]Style length.—+/−5 mm.

[0055]Stigmas.—Yellow.

[0056]Stigma width.—+/−mm.

[0057]Ovaries.—Enclosed in calyx.

[0058] Plant

[0059]Form.—A spray mum meant for erect culture.

[0060]Growth habit.—Erect.

[0061]Growth rate.—Medium.

[0062]Height 100- 110 cm.

[0063]Internodes.—2.5-3.0 cm.

[0064]Spray formation.—Corymbiform (funnel-shaped with a flat umbel ontop).

[0065]Peduncle length.—Near the top 14 cm, near the middle 21 cm, nearthe bottom 26 cm.

[0066]Peduncle color.—Green 138 B.

[0067]Peduncle, attachment.—Good, not brittle.

[0068]Peduncle, angle with stem.—Small, 30°.

[0069]Stem Color.—Yellow-green 138 B.

[0070]Stem strength.—Medium to strong.

[0071]Stem brittleness.—Absent.

[0072]Stem anthocyanin.—Present.

[0073]Coloration.—.

[0074]Flowering.—50 days .

[0075]Response (photo-periodic controlled.—. TABLE 2 Differences withcomparison varieties ‘Yellow ‘Pearl ‘Sunny Reagan Reagan ‘Yellow EliteMundo′ Mundo’ Reagan’ Reagan’ Color Yellow 10 A Purple 75 D Yellow 5 CYellow 5 A of Ray florets Flower 1.5 cm 1.3-1.5 cm 1.5 cm 1.0-1.2 cmdisc size Growth Medium Medium Medium Vigorous rate Height 100-110 cm100-115 cm 100-125 cm 105-130 cm Peduncle, 40° 40° 30°-35° 30° anglewith stem Required 14° C. 14° C. 17° C. 17° C. minimum night temper-ature

I claim:
 1. A new and distinct variety of chrysanthemum plant asdescribed and illustrated.